package controller;

import model.User;
import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/login")
public class LoginServlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username = req.getParameter("TxtUserName");
        String password = req.getParameter("TxtPassword");
        UserService userService = new UserServiceImpl();
        User user = userService.login(username, password);
        if (user != null) {
            //跳转到主页面
            req.getSession().setAttribute("user", user);
            resp.sendRedirect("index.jsp");
        } else {
//            req.setAttribute("msg", "用户名或密码错误");
            resp.setContentType("text/html; charset=utf-8");
            resp.getWriter().println("<script>location.href='login.jsp';alert('用户名或密码不正确');</script>");
        }
    }
}
